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Police in Atlanta are searching for a Centers for Disease Control and Prevention employee who was last seen two weeks ago, when he left work early after complaining that he felt unwell.

Timothy Jerrell Cunningham, 35, was last seen Feb. 12. Police said he called in sick that day and hasn’t been heard from since.

Cunningham's family told NBC News his sister was the last person to speak with him around 7 a.m. on Feb. 12.

When Cunningham didn't answer his family's calls or text, his worried parents drove to his Atlanta home from their home in Waldorf, Maryland. When they arrived, they found his car, keys, wallet and phone, WSB-TV reported. They said he also left his dog at home.

His father, Terrell Cunningham, told the television station that his son graduated from Morehouse and got a master’s degree and doctorate from Harvard University. He worked as an epidemic intelligence officer and has been deployed for public health emergencies.

Anyone with information on his whereabouts was asked to call Atlanta police.